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AGENDA – LBLF Quiz Complete CER rough draft, peer review (reasoning)

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Presentation on theme: "AGENDA – LBLF Quiz Complete CER rough draft, peer review (reasoning)"— Presentation transcript:

1 AGENDA – LBLF Quiz Complete CER rough draft, peer review (reasoning)
APRIL 09, OBJECTIVE – Same as 4/06. WARM-UP – How do scientists use plant pollen to make inferences about past climates? HOMEWORK – Make any revision to CER Rough Draft. AGENDA – LBLF Quiz Complete CER rough draft, peer review (reasoning)

2 Reasoning Focus Questions Scientific reasoning explains why/how the evidence supports the claim. 1. Why do scientists use fossilized pollen to make inferences about how the climate in the Anacostia Watershed changed over 12,500 years? Reference the Pollen article in your basket. Weebly, Causes of climate change, “Student articles with Questions” 2. How do scientists determine the age of sediment cores? Reference the Sediment article in your basket. Weebly, Causes of climate change, “Student articles with Questions” 3. Why was there a decrease in the % of pollen samples for birch, fir, hemlock and spruce from ~12,500 ybp to ~340 ybp? 4. Why was there an increase in the % of oak pollen samples found from ~12,500 ybp to ~340 ybp?


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